Mrs. DeBusk bought 1 pair of jeans that cost $15, a pair of socks that cost $5 and 4 t-shirts that were each the same price. The items purchased cost a total of $160 without tax included. What was the cost of each t-shirt?

Aprobability experiment is conducted in which the sample space of the experiment is s={7,8,9,10,11,12,13,14,15,16,17,18}, event f={7,8,9,10,11,12}, and event g={11,12,13,14}. assume that each outcome is equally likely. list the outcomes in f or g. find p(f or g) by counting the number of outcomes in f or g. determine p(f or g) using the general addition rule.